Fix merge duplication of package.json

package.json

@@ -45,9 +45,6 @@
     "opt-cli": "1.5.1",
     "react": "15.x.x",
     "react-dom": "15.x.x",
-    "scratch-blocks": "^0.1.0-prerelease",
-    "scratch-render": "^0.1.0-prerelease",
-    "scratch-vm": "^0.1.0-prerelease",
     "react-modal": "1.5.2",
     "scratch-blocks": "latest",
     "scratch-render": "latest",